Pressing OK in Projet > Propriétés du projet without changing anything
marked the project modified and rewrote its defaults for new folios.
Besides the Page Num placeholder (fixed separately), four causes:
- Title block custom fields: since #271 the dialog offers the
template's variables for filling in; those left empty came back as
part of the context. Drop the ones not in the stored context.
- DiagramContext::remove() left the key's show flag behind, so a
context with a key removed never equalled one without it.
- Guides: applyConf() marked the project modified whether or not the
guides changed. Compare them like every other setting.
- Wire dash size and cross-reference offsets: the spin boxes cannot
show the stored default (dash size 1 under a minimum of 2; offset 0
under a minimum of 40 shown as "Default"), so the clamped value came
back. Keep the stored value unless the box shows something else, as
#1204 did for the wire panel.
Checked in the GUI (with the Page Num fix as well) on grafcet,
schema_indus and Projet_vierge: OK with no edit then Ctrl+S saves the
same file as Ctrl+S alone; master writes dash-size 1 -> 2, a
cross-reference offset 0 -> 40, and on Projet_vierge 22 empty custom
fields. New test for DiagramContext::remove() fails without the fix.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Review of #1109 (scorpio810):
- tst_resaveunchanged now resaves every .qet in examples/ twice instead
of two of them (24 rows, ~40 s). Dropping the load-time trim now also
fails affuteuse_250h.qet, which the two-file version missed.
- New case singleSpaceValueKept: a title-block property set to one
space survives two saves (#973), and an accented property comes back
unchanged. Fails if qetproject.cpp stops parsing with
PreserveSpacingOnlyNodes.
- New tst_diagramcontext: the QDom reader (projects) and the pugixml
reader (element definitions in the collection) return the same value
for plain, stray-spaced, accented and non-Latin text. Fails if the
pugixml path decodes as Latin-1 or either reader stops trimming.
The pugixml reader still reads a single-space value as "": pugixml drops
whitespace-only text unless parse_ws_pcdata is set, as it did before
this PR. That reader only sees element definitions, never a project, so
#973's title-block values do not go through it.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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